Bioengineering and arthroscopy: Knotless anchor

Abstract

This paper describes the improvements made on a suture anchor device that can be used in different joint endo- surgeries, particularly knee and shoulder. This divice uses a new concept for tissues fixation, that simplifies the well known knot fixation used by traditional anchors, it is a knotless anchor. In addition, it incorporates an improvement in the material of the suture anchors, which are preloaded in the ergonomic screwdriver tool (which is part of the new device), and are made of PEEK (the last in biomaterials). The anchor developed allows easy and secure suture fixation to the bone. Knots are not used in its placement technique, the implant has a interferential function and uses fiber sutures of ultra high molecular weight These improvements allows to minimize the risks of infection and bleeding by reducing surgery time. Moreover this improvements were incorporated into a commercial product in a nonexistent market segment in Argentine by the company MicromedSystem (Arpones ARMIC PEEK KNOTLESS, national manufacture). This device was designed after analyzing the particular needs and limitations of the Argentine market in each of its stages of development.